Tanner or Kelp Crab ??

[Trapper John]

I was crabbing yesterday at the Edmonds Pier.
I caught this crazy / cool looking crab.
When I first seen it I said it was a Tanner Crab, a guy said it was a kelp and another guy said Spider crab.
All three names could be the same thing for all I know.
First one like this I ever caught or a matter of fact: seen.
Nice looking underside for colors.

Anyone know what it is for sure.  What do you say?
JC   

[Jake Dogfish]

I call that the kelp crab.  The similar but smaller golden colored one is the spider crab.

[Sitka_Blacktail]

Definitely not a tanner crab.